A portable tensiometer for assessing knot-tying technique

D. A. Franz, Erich Batra, R. F. Morgan, R. F. Edlich

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The purpose of this study was to determine the influence of orthopedic surgeons' tying techniques on knot security using 2-0 and 4-0 monofilament and multifilament nylon sutures. Using an Instron® Tensile Tester and a portable tensiometer, knot security was achieved with these sutures using four-throw square knots (1 = 1 = 1 = 1). After didactic and psychomotor skill training, medical students were taught to construct the four-throw square knot using either a two-hand tie or an instrument tie. Using the portable tensiometer, their knot-tying techniques were judged to be superior to those used by orthopedic surgeons. The orthopedic surgeon's faulty technique can easily be corrected by didactic information and psychomotor skill training.

Original languageEnglish (US)
Pages (from-to)555-558
Number of pages4
Issue number6
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine


Dive into the research topics of 'A portable tensiometer for assessing knot-tying technique'. Together they form a unique fingerprint.

Cite this